1051212255115 has 16 divisors (see below), whose sum is σ = 1377208442880. Its totient is φ = 763920205920.

The previous prime is 1051212255113. The next prime is 1051212255127. The reversal of 1051212255115 is 5115522121501.

It is not a de Polignac number, because 1051212255115 - 2¹ = 1051212255113 is a prime.

It is a super-2 number, since 2×1051212255115² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051212255113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7401489 + ... + 7542178.

It is an arithmetic number, because the mean of its divisors is an integer number (86075527680).

Almost surely, 2^{1051212255115} is an apocalyptic number.

1051212255115 is a deficient number, since it is larger than the sum of its proper divisors (325996187765).

1051212255115 is a wasteful number, since it uses less digits than its factorization.

1051212255115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14944962.

The product of its (nonzero) digits is 5000, while the sum is 31.

Adding to 1051212255115 its reverse (5115522121501), we get a palindrome (6166734376616).

The spelling of 1051212255115 in words is "one trillion, fifty-one billion, two hundred twelve million, two hundred fifty-five thousand, one hundred fifteen".