1210002001002 has 32 divisors (see below), whose sum is σ = 2739627178560. Its totient is φ = 395723923920.

The previous prime is 1210002000967. The next prime is 1210002001037. The reversal of 1210002001002 is 2001002000121.

It is an interprime number because it is at equal distance from previous prime (1210002000967) and next prime (1210002001037).

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 15 ways as a sum of consecutive naturals, for example, 211388124 + ... + 211393847.

It is an arithmetic number, because the mean of its divisors is an integer number (85613349330).

Almost surely, 2^{1210002001002} is an apocalyptic number.

1210002001002 is an abundant number, since it is smaller than the sum of its proper divisors (1529625177558).

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

1210002001002 is a wasteful number, since it uses less digits than its factorization.

1210002001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422782035 (or 422782029 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1210002001002 its reverse (2001002000121), we get a palindrome (3211004001123).

The spelling of 1210002001002 in words is "one trillion, two hundred ten billion, two million, one thousand, two".