2112201400 has 96 divisors (see below), whose sum is σ = 5016978000. Its totient is φ = 826833920.

The previous prime is 2112201391. The next prime is 2112201419. The reversal of 2112201400 is 41022112.

It is a happy number.

It is a super-2 number, since 2×2112201400² = 8922789508323920000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1904046 + ... + 1905154.

Almost surely, 2^2112201400 is an apocalyptic number.

2112201400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112201400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2508489000).

2112201400 is an abundant number, since it is smaller than the sum of its proper divisors (2904776600).

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

2112201400 is a wasteful number, since it uses less digits than its factorization.

2112201400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321 (or 1312 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2112201400 is about 45958.6923225629. The cubic root of 2112201400 is about 1283.0545133671.

Adding to 2112201400 its reverse (41022112), we get a palindrome (2153223512).

The spelling of 2112201400 in words is "two billion, one hundred twelve million, two hundred one thousand, four hundred".