1200120001010 has 32 divisors (see below), whose sum is σ = 2471475922560. Its totient is φ = 411026775552.

The previous prime is 1200120000973. The next prime is 1200120001027. The reversal of 1200120001010 is 101000210021.

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, 9162404 + ... + 9292463.

It is an arithmetic number, because the mean of its divisors is an integer number (77233622580).

Almost surely, 2^{1200120001010} is an apocalyptic number.

1200120001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200120001010 is an abundant number, since it is smaller than the sum of its proper divisors (1271355921550).

1200120001010 is a wasteful number, since it uses less digits than its factorization.

1200120001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18455810.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1200120001010 its reverse (101000210021), we get a palindrome (1301120211031).

The spelling of 1200120001010 in words is "one trillion, two hundred billion, one hundred twenty million, one thousand, ten".