2121210122102 has 16 divisors (see below), whose sum is σ = 3369074569200. Its totient is φ = 998188739328.

The previous prime is 2121210122041. The next prime is 2121210122107. The reversal of 2121210122102 is 2012210121212.

It is a super-3 number, since 3×2121210122102³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121210122107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397649 + ... + 2097747.

It is an arithmetic number, because the mean of its divisors is an integer number (210567160575).

Almost surely, 2^{2121210122102} is an apocalyptic number.

2121210122102 is a deficient number, since it is larger than the sum of its proper divisors (1247864447098).

2121210122102 is a wasteful number, since it uses less digits than its factorization.

2121210122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736815.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2121210122102 its reverse (2012210121212), we get a palindrome (4133420243314).

The spelling of 2121210122102 in words is "two trillion, one hundred twenty-one billion, two hundred ten million, one hundred twenty-two thousand, one hundred two".