102021212011010 has 16 divisors (see below), whose sum is σ = 185456381439672. Its totient is φ = 40404440400000.

The previous prime is 102021212011007. The next prime is 102021212011013. The reversal of 102021212011010 is 10110212120201.

It is an interprime number because it is at equal distance from previous prime (102021212011007) and next prime (102021212011013).

It can be written as a sum of positive squares in 4 ways, for example, as 97631730289129 + 4389481721881 = 9880877^2 + 2095109^2 .

It is a super-2 number, since 2×102021212011010² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102021212011013) 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, 50505549491 + ... + 50505551510.

Almost surely, 2^{102021212011010} is an apocalyptic number.

102021212011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102021212011010 is a deficient number, since it is larger than the sum of its proper divisors (83435169428662).

102021212011010 is a wasteful number, since it uses less digits than its factorization.

102021212011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101011101109.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102021212011010 its reverse (10110212120201), we get a palindrome (112131424131211).

The spelling of 102021212011010 in words is "one hundred two trillion, twenty-one billion, two hundred twelve million, eleven thousand, ten".