2121010042102 has 16 divisors (see below), whose sum is σ = 3641689644192. Its totient is φ = 907586196480.

The previous prime is 2121010042097. The next prime is 2121010042133. The reversal of 2121010042102 is 2012400101212.

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, 118166313 + ... + 118184260.

It is an arithmetic number, because the mean of its divisors is an integer number (227605602762).

Almost surely, 2^{2121010042102} is an apocalyptic number.

2121010042102 is a deficient number, since it is larger than the sum of its proper divisors (1520679602090).

2121010042102 is a wasteful number, since it uses less digits than its factorization.

2121010042102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236351223.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2121010042102 its reverse (2012400101212), we get a palindrome (4133410143314).

The spelling of 2121010042102 in words is "two trillion, one hundred twenty-one billion, ten million, forty-two thousand, one hundred two".