11921122070 has 96 divisors (see below), whose sum is σ = 25535974464. Its totient is φ = 3980148480.

The previous prime is 11921122069. The next prime is 11921122079. The reversal of 11921122070 is 7022112911.

11921122070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11921122070² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11921122079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3096887 + ... + 3100733.

It is an arithmetic number, because the mean of its divisors is an integer number (265999734).

Almost surely, 2^11921122070 is an apocalyptic number.

11921122070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11921122070 is an abundant number, since it is smaller than the sum of its proper divisors (13614852394).

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

11921122070 is a wasteful number, since it uses less digits than its factorization.

11921122070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4086 (or 4075 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 26.

Adding to 11921122070 its reverse (7022112911), we get a palindrome (18943234981).

The spelling of 11921122070 in words is "eleven billion, nine hundred twenty-one million, one hundred twenty-two thousand, seventy".