21112021011002 has 32 divisors (see below), whose sum is σ = 33088165241472. Its totient is φ = 10095053117184.

The previous prime is 21112021010999. The next prime is 21112021011043. The reversal of 21112021011002 is 20011012021112.

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, 11413118 + ... + 13133289.

It is an arithmetic number, because the mean of its divisors is an integer number (1034005163796).

Almost surely, 2^{21112021011002} is an apocalyptic number.

21112021011002 is a deficient number, since it is larger than the sum of its proper divisors (11976144230470).

21112021011002 is a wasteful number, since it uses less digits than its factorization.

21112021011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24546662.

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

Adding to 21112021011002 its reverse (20011012021112), we get a palindrome (41123033032114).

The spelling of 21112021011002 in words is "twenty-one trillion, one hundred twelve billion, twenty-one million, eleven thousand, two".