21011000111202 has 32 divisors (see below), whose sum is σ = 42290451777600. Its totient is φ = 6958926456768.

The previous prime is 21011000111191. The next prime is 21011000111347. The reversal of 21011000111202 is 20211100011012.

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, 58657824 + ... + 59014932.

It is an arithmetic number, because the mean of its divisors is an integer number (1321576618050).

Almost surely, 2^{21011000111202} is an apocalyptic number.

21011000111202 is an abundant number, since it is smaller than the sum of its proper divisors (21279451666398).

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

21011000111202 is a wasteful number, since it uses less digits than its factorization.

21011000111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419730.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21011000111202 its reverse (20211100011012), we get a palindrome (41222100122214).

The spelling of 21011000111202 in words is "twenty-one trillion, eleven billion, one hundred eleven thousand, two hundred two".