102021211123210 has 64 divisors (see below), whose sum is σ = 197463109229568. Its totient is φ = 37811612703744.

The previous prime is 102021211123201. The next prime is 102021211123243. The reversal of 102021211123210 is 12321112120201.

It is a super-3 number, since 3×102021211123210³ (a number of 43 digits) contains 333 as substring.

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, 15909607 + ... + 21381253.

It is an arithmetic number, because the mean of its divisors is an integer number (3085361081712).

Almost surely, 2^{102021211123210} is an apocalyptic number.

102021211123210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102021211123210 is a deficient number, since it is larger than the sum of its proper divisors (95441898106358).

102021211123210 is a wasteful number, since it uses less digits than its factorization.

102021211123210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5473375.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 102021211123210 its reverse (12321112120201), we get a palindrome (114342323243411).

The spelling of 102021211123210 in words is "one hundred two trillion, twenty-one billion, two hundred eleven million, one hundred twenty-three thousand, two hundred ten".