1002120121170 has 96 divisors (see below), whose sum is σ = 2999463861888. Its totient is φ = 227384066304.

The previous prime is 1002120121169. The next prime is 1002120121231. The reversal of 1002120121170 is 711210212001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5719044 + ... + 5891663.

It is an arithmetic number, because the mean of its divisors is an integer number (31244415228).

Almost surely, 2^{1002120121170} is an apocalyptic number.

1002120121170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002120121170 is an abundant number, since it is smaller than the sum of its proper divisors (1997343740718).

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

1002120121170 is a wasteful number, since it uses less digits than its factorization.

1002120121170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11610864 (or 11610861 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 18.

Adding to 1002120121170 its reverse (711210212001), we get a palindrome (1713330333171).

The spelling of 1002120121170 in words is "one trillion, two billion, one hundred twenty million, one hundred twenty-one thousand, one hundred seventy".