2121202010102 has 64 divisors (see below), whose sum is σ = 3845111040000. Its totient is φ = 857332449792.

The previous prime is 2121202010099. The next prime is 2121202010143. The reversal of 2121202010102 is 2010102021212.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295551938 + ... + 295559114.

It is an arithmetic number, because the mean of its divisors is an integer number (60079860000).

Almost surely, 2^{2121202010102} is an apocalyptic number.

2121202010102 is a deficient number, since it is larger than the sum of its proper divisors (1723909029898).

2121202010102 is a wasteful number, since it uses less digits than its factorization.

2121202010102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12093.

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

Adding to 2121202010102 its reverse (2010102021212), we get a palindrome (4131304031314).

It can be divided in two parts, 212120 and 2010102, that added together give a palindrome (2222222).

The spelling of 2121202010102 in words is "two trillion, one hundred twenty-one billion, two hundred two million, ten thousand, one hundred two".