2021212310 has 32 divisors (see below), whose sum is σ = 3924154080. Its totient is φ = 745129728.

The previous prime is 2021212279. The next prime is 2021212321. The reversal of 2021212310 is 132121202.

It is a happy number.

It is a super-2 number, since 2×2021212310² = 8170598404191072200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73874 + ... + 97466.

It is an arithmetic number, because the mean of its divisors is an integer number (122629815).

Almost surely, 2^2021212310 is an apocalyptic number.

2021212310 is a deficient number, since it is larger than the sum of its proper divisors (1902941770).

2021212310 is a wasteful number, since it uses less digits than its factorization.

2021212310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24272.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2021212310 is about 44957.8948572995. The cubic root of 2021212310 is about 1264.3597003285.

Adding to 2021212310 its reverse (132121202), we get a palindrome (2153333512).

The spelling of 2021212310 in words is "two billion, twenty-one million, two hundred twelve thousand, three hundred ten".