49122211212 has 120 divisors (see below), whose sum is σ = 136474873920. Its totient is φ = 15353556480.

The previous prime is 49122211189. The next prime is 49122211213. The reversal of 49122211212 is 21211222194.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (49122211213) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1476214 + ... + 1509122.

It is an arithmetic number, because the mean of its divisors is an integer number (1137290616).

Almost surely, 2^49122211212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49122211212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68237436960).

49122211212 is an abundant number, since it is smaller than the sum of its proper divisors (87352662708).

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

49122211212 is a wasteful number, since it uses less digits than its factorization.

49122211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33213 (or 33202 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The spelling of 49122211212 in words is "forty-nine billion, one hundred twenty-two million, two hundred eleven thousand, two hundred twelve".