212210210121101 has 16 divisors (see below), whose sum is σ = 218205684721728. Its totient is φ = 206263214640000.

The previous prime is 212210210121097. The next prime is 212210210121109. The reversal of 212210210121101 is 101121012012212.

It is a cyclic number.

It is not a de Polignac number, because 212210210121101 - 2² = 212210210121097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212210210121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210210121109) 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, 61849655 + ... + 65190491.

It is an arithmetic number, because the mean of its divisors is an integer number (13637855295108).

Almost surely, 2^{212210210121101} is an apocalyptic number.

It is an amenable number.

212210210121101 is a deficient number, since it is larger than the sum of its proper divisors (5995474600627).

212210210121101 is a wasteful number, since it uses less digits than its factorization.

212210210121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3348092.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212210210121101 its reverse (101121012012212), we get a palindrome (313331222133313).

The spelling of 212210210121101 in words is "two hundred twelve trillion, two hundred ten billion, two hundred ten million, one hundred twenty-one thousand, one hundred one".