121210001222011 has 32 divisors (see below), whose sum is σ = 141203424192768. Its totient is φ = 103027272499200.

The previous prime is 121210001221961. The next prime is 121210001222029. The reversal of 121210001222011 is 110222100012121.

It is a cyclic number.

It is not a de Polignac number, because 121210001222011 - 2³⁹ = 120660245408123 is a prime.

It is a super-2 number, since 2×121210001222011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121210001202011) 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, 27010911 + ... + 31177063.

It is an arithmetic number, because the mean of its divisors is an integer number (4412607006024).

Almost surely, 2^{121210001222011} is an apocalyptic number.

121210001222011 is a deficient number, since it is larger than the sum of its proper divisors (19993422970757).

121210001222011 is a wasteful number, since it uses less digits than its factorization.

121210001222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169031.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121210001222011 its reverse (110222100012121), we get a palindrome (231432101234132).

The spelling of 121210001222011 in words is "one hundred twenty-one trillion, two hundred ten billion, one million, two hundred twenty-two thousand, eleven".