103212211021 has 16 divisors (see below), whose sum is σ = 105048244224. Its totient is φ = 101395905264.

The previous prime is 103212211019. The next prime is 103212211033. The reversal of 103212211021 is 120112212301.

It is a cyclic number.

It is not a de Polignac number, because 103212211021 - 2¹ = 103212211019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103212210986 and 103212211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103212211001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6267220 + ... + 6283666.

It is an arithmetic number, because the mean of its divisors is an integer number (6565515264).

Almost surely, 2^103212211021 is an apocalyptic number.

It is an amenable number.

103212211021 is a deficient number, since it is larger than the sum of its proper divisors (1836033203).

103212211021 is a wasteful number, since it uses less digits than its factorization.

103212211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17040.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 103212211021 its reverse (120112212301), we get a palindrome (223324423322).

The spelling of 103212211021 in words is "one hundred three billion, two hundred twelve million, two hundred eleven thousand, twenty-one".