2101221002102 has 16 divisors (see below), whose sum is σ = 3461965954560. Its totient is φ = 952040636712.

The previous prime is 2101221002099. The next prime is 2101221002117. The reversal of 2101221002102 is 2012001221012.

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, 1202070638 + ... + 1202072385.

It is an arithmetic number, because the mean of its divisors is an integer number (216372872160).

Almost surely, 2^{2101221002102} is an apocalyptic number.

2101221002102 is a deficient number, since it is larger than the sum of its proper divisors (1360744952458).

2101221002102 is a wasteful number, since it uses less digits than its factorization.

2101221002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404143067.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2101221002102 its reverse (2012001221012), we get a palindrome (4113222223114).

The spelling of 2101221002102 in words is "two trillion, one hundred one billion, two hundred twenty-one million, two thousand, one hundred two".