21011202111002 has 16 divisors (see below), whose sum is σ = 32051953065600. Its totient is φ = 10327228498080.

The previous prime is 21011202110959. The next prime is 21011202111017. The reversal of 21011202111002 is 20011120211012.

It is a super-2 number, since 2×21011202111002² (a number of 27 digits) contains 22 as substring.

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, 1267502 + ... + 6605222.

It is an arithmetic number, because the mean of its divisors is an integer number (2003247066600).

Almost surely, 2^{21011202111002} is an apocalyptic number.

21011202111002 is a deficient number, since it is larger than the sum of its proper divisors (11040750954598).

21011202111002 is a wasteful number, since it uses less digits than its factorization.

21011202111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5371141.

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

Adding to 21011202111002 its reverse (20011120211012), we get a palindrome (41022322322014).

The spelling of 21011202111002 in words is "twenty-one trillion, eleven billion, two hundred two million, one hundred eleven thousand, two".