11211212061051 has 16 divisors (see below), whose sum is σ = 15448387197600. Its totient is φ = 7227315630080.

The previous prime is 11211212061037. The next prime is 11211212061079. The reversal of 11211212061051 is 15016021211211.

It is a cyclic number.

It is not a de Polignac number, because 11211212061051 - 2¹⁵ = 11211212028283 is a prime.

It is a super-2 number, since 2×11211212061051² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11211212061001) 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, 403296126 + ... + 403323923.

It is an arithmetic number, because the mean of its divisors is an integer number (965524199850).

Almost surely, 2^{11211212061051} is an apocalyptic number.

11211212061051 is a deficient number, since it is larger than the sum of its proper divisors (4237175136549).

11211212061051 is a wasteful number, since it uses less digits than its factorization.

11211212061051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806620206.

The product of its (nonzero) digits is 240, while the sum is 24.

Adding to 11211212061051 its reverse (15016021211211), we get a palindrome (26227233272262).

The spelling of 11211212061051 in words is "eleven trillion, two hundred eleven billion, two hundred twelve million, sixty-one thousand, fifty-one".