21220032114 has 24 divisors (see below), whose sum is σ = 46281223872. Its totient is φ = 7026499800.

The previous prime is 21220032101. The next prime is 21220032133. The reversal of 21220032114 is 41123002212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3900894 + ... + 3906329.

It is an arithmetic number, because the mean of its divisors is an integer number (1928384328).

Almost surely, 2^21220032114 is an apocalyptic number.

21220032114 is an abundant number, since it is smaller than the sum of its proper divisors (25061191758).

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

21220032114 is a wasteful number, since it uses less digits than its factorization.

21220032114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7807382 (or 7807379 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21220032114 its reverse (41123002212), we get a palindrome (62343034326).

The spelling of 21220032114 in words is "twenty-one billion, two hundred twenty million, thirty-two thousand, one hundred fourteen".