1002121000210 has 128 divisors (see below), whose sum is σ = 2176688277504. Its totient is φ = 327676124160.

The previous prime is 1002121000189. The next prime is 1002121000337. The reversal of 1002121000210 is 120001212001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37964637 + ... + 37991023.

It is an arithmetic number, because the mean of its divisors is an integer number (17005377168).

Almost surely, 2^{1002121000210} is an apocalyptic number.

1002121000210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002121000210 is an abundant number, since it is smaller than the sum of its proper divisors (1174567277294).

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

1002121000210 is a wasteful number, since it uses less digits than its factorization.

1002121000210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27328.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1002121000210 its reverse (120001212001), we get a palindrome (1122122212211).

The spelling of 1002121000210 in words is "one trillion, two billion, one hundred twenty-one million, two hundred ten", and thus it is an aban number.