102021211112010 has 32 divisors (see below), whose sum is σ = 244856173026240. Its totient is φ = 27205071145728.

The previous prime is 102021211111979. The next prime is 102021211112017. The reversal of 102021211112010 is 10211112120201.

It is a happy number.

It is a super-2 number, since 2×102021211112010² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (102021211112017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35152975 + ... + 37944354.

It is an arithmetic number, because the mean of its divisors is an integer number (7651755407070).

Almost surely, 2^{102021211112010} is an apocalyptic number.

102021211112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102021211112010 is an abundant number, since it is smaller than the sum of its proper divisors (142834961914230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102021211112010 is a wasteful number, since it uses less digits than its factorization.

102021211112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73143862.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102021211112010 its reverse (10211112120201), we get a palindrome (112232323232211).

The spelling of 102021211112010 in words is "one hundred two trillion, twenty-one billion, two hundred eleven million, one hundred twelve thousand, ten".