10212111015 has 16 divisors (see below), whose sum is σ = 16507827168. Its totient is φ = 5390309376.

The previous prime is 10212110977. The next prime is 10212111053. The reversal of 10212111015 is 51011121201.

It is an interprime number because it is at equal distance from previous prime (10212110977) and next prime (10212111053).

It is not a de Polignac number, because 10212111015 - 2¹⁴ = 10212094631 is a prime.

It is a super-2 number, since 2×10212111015² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 10212110985 and 10212111003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3507862 + ... + 3510771.

It is an arithmetic number, because the mean of its divisors is an integer number (1031739198).

Almost surely, 2^10212111015 is an apocalyptic number.

10212111015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10212111015 is a deficient number, since it is larger than the sum of its proper divisors (6295716153).

10212111015 is an equidigital number, since it uses as much as digits as its factorization.

10212111015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7018738.

The product of its (nonzero) digits is 20, while the sum is 15.

Adding to 10212111015 its reverse (51011121201), we get a palindrome (61223232216).

The spelling of 10212111015 in words is "ten billion, two hundred twelve million, one hundred eleven thousand, fifteen".