1210011001002 has 24 divisors (see below), whose sum is σ = 2775907591236. Its totient is φ = 379611294336.

The previous prime is 1210011000973. The next prime is 1210011001097. The reversal of 1210011001002 is 2001001100121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1159043874921 + 50967126081 = 1076589^2 + 225759^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1977141853 + ... + 1977142464.

Almost surely, 2^{1210011001002} is an apocalyptic number.

1210011001002 is an abundant number, since it is smaller than the sum of its proper divisors (1565896590234).

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

1210011001002 is a wasteful number, since it uses less digits than its factorization.

1210011001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954284342 (or 3954284339 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1210011001002 its reverse (2001001100121), we get a palindrome (3211012101123).

The spelling of 1210011001002 in words is "one trillion, two hundred ten billion, eleven million, one thousand, two".