21142101022 has 16 divisors (see below), whose sum is σ = 36302358240. Its totient is φ = 9046211328.

The previous prime is 21142101011. The next prime is 21142101031. The reversal of 21142101022 is 22010124112.

It is a junction number, because it is equal to n+sod(n) for n = 21142100987 and 21142101005.

It is a congruent number.

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, 1215147 + ... + 1232422.

It is an arithmetic number, because the mean of its divisors is an integer number (2268897390).

Almost surely, 2^21142101022 is an apocalyptic number.

21142101022 is a deficient number, since it is larger than the sum of its proper divisors (15160257218).

21142101022 is a wasteful number, since it uses less digits than its factorization.

21142101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448195.

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

Adding to 21142101022 its reverse (22010124112), we get a palindrome (43152225134).

The spelling of 21142101022 in words is "twenty-one billion, one hundred forty-two million, one hundred one thousand, twenty-two".