21111010012202 has 128 divisors (see below), whose sum is σ = 36069970083840. Its totient is φ = 9183507802560.

The previous prime is 21111010012187. The next prime is 21111010012217. The reversal of 21111010012202 is 20221001011112.

It is an interprime number because it is at equal distance from previous prime (21111010012187) and next prime (21111010012217).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11070271733 + ... + 11070273639.

It is an arithmetic number, because the mean of its divisors is an integer number (281796641280).

Almost surely, 2^{21111010012202} is an apocalyptic number.

21111010012202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21111010012202 is a deficient number, since it is larger than the sum of its proper divisors (14958960071638).

21111010012202 is a wasteful number, since it uses less digits than its factorization.

21111010012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21111010012202 its reverse (20221001011112), we get a palindrome (41332011023314).

The spelling of 21111010012202 in words is "twenty-one trillion, one hundred eleven billion, ten million, twelve thousand, two hundred two".