1212211000902 has 64 divisors (see below), whose sum is σ = 2690866080000. Its totient is φ = 360968762880.

The previous prime is 1212211000901. The next prime is 1212211001033. The reversal of 1212211000902 is 2090001122121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212211000901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1473474 + ... + 2143722.

It is an arithmetic number, because the mean of its divisors is an integer number (42044782500).

Almost surely, 2^{1212211000902} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212211000902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1345433040000).

1212211000902 is an abundant number, since it is smaller than the sum of its proper divisors (1478655079098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212211000902 is a wasteful number, since it uses less digits than its factorization.

1212211000902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670741.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 1212211000902 in words is "one trillion, two hundred twelve billion, two hundred eleven million, nine hundred two", and thus it is an aban number.