21120022202 has 16 divisors (see below), whose sum is σ = 32452168320. Its totient is φ = 10305246048.

The previous prime is 21120022141. The next prime is 21120022219. The reversal of 21120022202 is 20222002112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637058 + ... + 669389.

It is an arithmetic number, because the mean of its divisors is an integer number (2028260520).

Almost surely, 2^21120022202 is an apocalyptic number.

21120022202 is a deficient number, since it is larger than the sum of its proper divisors (11332146118).

21120022202 is a wasteful number, since it uses less digits than its factorization.

21120022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306645.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21120022202 its reverse (20222002112), we get a palindrome (41342024314).

The spelling of 21120022202 in words is "twenty-one billion, one hundred twenty million, twenty-two thousand, two hundred two".