1012111220201 has 8 divisors (see below), whose sum is σ = 1031361863040. Its totient is φ = 992866288752.

The previous prime is 1012111220171. The next prime is 1012111220297. The reversal of 1012111220201 is 1020221112101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012111220201 is a prime.

It is a super-2 number, since 2×1012111220201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012111820201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1069211 + ... + 1779728.

It is an arithmetic number, because the mean of its divisors is an integer number (128920232880).

Almost surely, 2^{1012111220201} is an apocalyptic number.

It is an amenable number.

1012111220201 is a deficient number, since it is larger than the sum of its proper divisors (19250642839).

1012111220201 is an equidigital number, since it uses as much as digits as its factorization.

1012111220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2855695.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1012111220201 its reverse (1020221112101), we get a palindrome (2032332332302).

The spelling of 1012111220201 in words is "one trillion, twelve billion, one hundred eleven million, two hundred twenty thousand, two hundred one".