1022011111215 has 96 divisors (see below), whose sum is σ = 1948038543360. Its totient is φ = 493364044800.

The previous prime is 1022011111207. The next prime is 1022011111249. The reversal of 1022011111215 is 5121111102201.

It is a happy number.

It is not a de Polignac number, because 1022011111215 - 2³ = 1022011111207 is a prime.

It is a super-2 number, since 2×1022011111215² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17295370 + ... + 17354360.

It is an arithmetic number, because the mean of its divisors is an integer number (20292068160).

Almost surely, 2^{1022011111215} is an apocalyptic number.

1022011111215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1022011111215 is a deficient number, since it is larger than the sum of its proper divisors (926027432145).

1022011111215 is a wasteful number, since it uses less digits than its factorization.

1022011111215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59925 (or 59922 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 18.

Adding to 1022011111215 its reverse (5121111102201), we get a palindrome (6143122213416).

The spelling of 1022011111215 in words is "one trillion, twenty-two billion, eleven million, one hundred eleven thousand, two hundred fifteen".