21202010021122 has 64 divisors (see below), whose sum is σ = 38920370814720. Its totient is φ = 8455189248000.

The previous prime is 21202010021089. The next prime is 21202010021183. The reversal of 21202010021122 is 22112001020212.

It is a happy number.

It is a super-2 number, since 2×21202010021122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21202010021096 and 21202010021105.

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, 260519097 + ... + 260600467.

It is an arithmetic number, because the mean of its divisors is an integer number (608130793980).

Almost surely, 2^{21202010021122} is an apocalyptic number.

21202010021122 is a deficient number, since it is larger than the sum of its proper divisors (17718360793598).

21202010021122 is a wasteful number, since it uses less digits than its factorization.

21202010021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93787.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21202010021122 its reverse (22112001020212), we get a palindrome (43314011041334).

The spelling of 21202010021122 in words is "twenty-one trillion, two hundred two billion, ten million, twenty-one thousand, one hundred twenty-two".