1022111201020 has 96 divisors (see below), whose sum is σ = 2681193973248. Its totient is φ = 318653229312.

The previous prime is 1022111200987. The next prime is 1022111201029. The reversal of 1022111201020 is 201021112201.

It is a super-3 number, since 3×1022111201020³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022111201029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4069102 + ... + 4312981.

It is an arithmetic number, because the mean of its divisors is an integer number (27929103888).

Almost surely, 2^{1022111201020} is an apocalyptic number.

1022111201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022111201020 is an abundant number, since it is smaller than the sum of its proper divisors (1659082772228).

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

1022111201020 is a wasteful number, since it uses less digits than its factorization.

1022111201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8382179 (or 8382177 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1022111201020 its reverse (201021112201), we get a palindrome (1223132313221).

The spelling of 1022111201020 in words is "one trillion, twenty-two billion, one hundred eleven million, two hundred one thousand, twenty".