1212211001023 has 16 divisors (see below), whose sum is σ = 1340690351616. Its totient is φ = 1086781717440.

The previous prime is 1212211000901. The next prime is 1212211001033. The reversal of 1212211001023 is 3201001122121.

It is a cyclic number.

It is not a de Polignac number, because 1212211001023 - 2²⁹ = 1211674130111 is a prime.

It is a super-2 number, since 2×1212211001023² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212211000988 and 1212211001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212211001033) 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, 6836736 + ... + 7011802.

It is an arithmetic number, because the mean of its divisors is an integer number (83793146976).

Almost surely, 2^{1212211001023} is an apocalyptic number.

1212211001023 is a deficient number, since it is larger than the sum of its proper divisors (128479350593).

1212211001023 is a wasteful number, since it uses less digits than its factorization.

1212211001023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183774.

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

Adding to 1212211001023 its reverse (3201001122121), we get a palindrome (4413212123144).

The spelling of 1212211001023 in words is "one trillion, two hundred twelve billion, two hundred eleven million, one thousand, twenty-three".