1200211101010 has 64 divisors (see below), whose sum is σ = 2289460567680. Its totient is φ = 452233152000.

The previous prime is 1200211100993. The next prime is 1200211101059. The reversal of 1200211101010 is 101011120021.

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 31 ways as a sum of consecutive naturals, for example, 10956510 + ... + 11065510.

It is an arithmetic number, because the mean of its divisors is an integer number (35772821370).

Almost surely, 2^{1200211101010} is an apocalyptic number.

1200211101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200211101010 is a deficient number, since it is larger than the sum of its proper divisors (1089249466670).

1200211101010 is a wasteful number, since it uses less digits than its factorization.

1200211101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109963.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1200211101010 its reverse (101011120021), we get a palindrome (1301222221031).

The spelling of 1200211101010 in words is "one trillion, two hundred billion, two hundred eleven million, one hundred one thousand, ten".