1210012212101 has 16 divisors (see below), whose sum is σ = 1540684247040. Its totient is φ = 922805663280.

The previous prime is 1210012212067. The next prime is 1210012212113. The reversal of 1210012212101 is 1012122100121.

It is a cyclic number.

It is not a de Polignac number, because 1210012212101 - 2²² = 1210008017797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210012212161) 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, 167171321 + ... + 167178558.

It is an arithmetic number, because the mean of its divisors is an integer number (96292765440).

Almost surely, 2^{1210012212101} is an apocalyptic number.

1210012212101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1210012212101 is a deficient number, since it is larger than the sum of its proper divisors (330672034939).

1210012212101 is a wasteful number, since it uses less digits than its factorization.

1210012212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334349944.

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

Adding to 1210012212101 its reverse (1012122100121), we get a palindrome (2222134312222).

The spelling of 1210012212101 in words is "one trillion, two hundred ten billion, twelve million, two hundred twelve thousand, one hundred one".