21122001011202 has 64 divisors (see below), whose sum is σ = 52619035069440. Its totient is φ = 5503521501504.

The previous prime is 21122001011197. The next prime is 21122001011233. The reversal of 21122001011202 is 20211010022112.

It is a super-2 number, since 2×21122001011202² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232996752 + ... + 233087387.

It is an arithmetic number, because the mean of its divisors is an integer number (822172422960).

Almost surely, 2^{21122001011202} is an apocalyptic number.

21122001011202 is an abundant number, since it is smaller than the sum of its proper divisors (31497034058238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21122001011202 is a wasteful number, since it uses less digits than its factorization.

21122001011202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466084247.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21122001011202 its reverse (20211010022112), we get a palindrome (41333011033314).

The spelling of 21122001011202 in words is "twenty-one trillion, one hundred twenty-two billion, one million, eleven thousand, two hundred two".