21214224202 has 32 divisors (see below), whose sum is σ = 33498541440. Its totient is φ = 10056446400.

The previous prime is 21214224173. The next prime is 21214224221. The reversal of 21214224202 is 20242241212.

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, 4479828 + ... + 4484560.

It is an arithmetic number, because the mean of its divisors is an integer number (1046829420).

Almost surely, 2^21214224202 is an apocalyptic number.

21214224202 is a deficient number, since it is larger than the sum of its proper divisors (12284317238).

21214224202 is a wasteful number, since it uses less digits than its factorization.

21214224202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5598.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 21214224202 its reverse (20242241212), we get a palindrome (41456465414).

The spelling of 21214224202 in words is "twenty-one billion, two hundred fourteen million, two hundred twenty-four thousand, two hundred two".