2211900013928 has 64 divisors (see below), whose sum is σ = 4623783091200. Its totient is φ = 983340285120.

The previous prime is 2211900013927. The next prime is 2211900013937. The reversal of 2211900013928 is 8293100091122.

It is a super-2 number, since 2×2211900013928² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2211900013891 and 2211900013900.

It is not an unprimeable number, because it can be changed into a prime (2211900013927) 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, 5851151 + ... + 6217697.

It is an arithmetic number, because the mean of its divisors is an integer number (72246610800).

Almost surely, 2^{2211900013928} 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 2211900013928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2311891545600).

2211900013928 is an abundant number, since it is smaller than the sum of its proper divisors (2411883077272).

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

2211900013928 is a wasteful number, since it uses less digits than its factorization.

2211900013928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368070 (or 368066 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 2211900013928 in words is "two trillion, two hundred eleven billion, nine hundred million, thirteen thousand, nine hundred twenty-eight".