212010021031321 has 16 divisors (see below), whose sum is σ = 215683216406784. Its totient is φ = 208363536866304.

The previous prime is 212010021031309. The next prime is 212010021031331. The reversal of 212010021031321 is 123130120010212.

It is a cyclic number.

It is not a de Polignac number, because 212010021031321 - 2¹¹ = 212010021029273 is a prime.

It is a super-3 number, since 3×212010021031321³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (212010021031331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523891360 + ... + 524295886.

It is an arithmetic number, because the mean of its divisors is an integer number (13480201025424).

Almost surely, 2^{212010021031321} is an apocalyptic number.

It is an amenable number.

212010021031321 is a deficient number, since it is larger than the sum of its proper divisors (3673195375463).

212010021031321 is a wasteful number, since it uses less digits than its factorization.

212010021031321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437520.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212010021031321 its reverse (123130120010212), we get a palindrome (335140141041533).

The spelling of 212010021031321 in words is "two hundred twelve trillion, ten billion, twenty-one million, thirty-one thousand, three hundred twenty-one".