1212100120002 has 16 divisors (see below), whose sum is σ = 2551789726560. Its totient is φ = 382768458912.

The previous prime is 1212100119977. The next prime is 1212100120051. The reversal of 1212100120002 is 2000210012121.

It is a self number, because there is not a number n which added to its sum of digits gives 1212100120002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5316228483 + ... + 5316228710.

It is an arithmetic number, because the mean of its divisors is an integer number (159486857910).

Almost surely, 2^{1212100120002} is an apocalyptic number.

1212100120002 is an abundant number, since it is smaller than the sum of its proper divisors (1339689606558).

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

1212100120002 is a wasteful number, since it uses less digits than its factorization.

1212100120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10632457217.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1212100120002 its reverse (2000210012121), we get a palindrome (3212310132123).

The spelling of 1212100120002 in words is "one trillion, two hundred twelve billion, one hundred million, one hundred twenty thousand, two".