1201102011021 has 12 divisors (see below), whose sum is σ = 1760292754976. Its totient is φ = 727940612520.

The previous prime is 1201102011013. The next prime is 1201102011047.

1201102011021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1201102011021 - 2³ = 1201102011013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201102010988 and 1201102011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201102011071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1654410121 + ... + 1654410846.

Almost surely, 2^{1201102011021} is an apocalyptic number.

1201102011021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1201102011021 is a deficient number, since it is larger than the sum of its proper divisors (559190743955).

1201102011021 is a wasteful number, since it uses less digits than its factorization.

1201102011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308820992 (or 3308820981 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

The spelling of 1201102011021 in words is "one trillion, two hundred one billion, one hundred two million, eleven thousand, twenty-one".