121210222212001 has 32 divisors (see below), whose sum is σ = 137748784320000. Its totient is φ = 105732017411328.

The previous prime is 121210222211951. The next prime is 121210222212067. The reversal of 121210222212001 is 100212222012121.

It is a cyclic number.

It is not a de Polignac number, because 121210222212001 - 2⁹ = 121210222211489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 121210222212001.

It is not an unprimeable number, because it can be changed into a prime (121210222212601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 332493975 + ... + 332858323.

It is an arithmetic number, because the mean of its divisors is an integer number (4304649510000).

Almost surely, 2^{121210222212001} is an apocalyptic number.

It is an amenable number.

121210222212001 is a deficient number, since it is larger than the sum of its proper divisors (16538562107999).

121210222212001 is a wasteful number, since it uses less digits than its factorization.

121210222212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367753.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121210222212001 its reverse (100212222012121), we get a palindrome (221422444224122).

The spelling of 121210222212001 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred twenty-two million, two hundred twelve thousand, one".