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212202012 = 223111607591
BaseRepresentation
bin11001010010111…
…11001000011100
3112210021222102210
430221133020130
5413310431022
633020120420
75154454521
oct1451371034
9483258383
10212202012
11a9867570
125b096110
1334c6a229
142027b148
1513969a0c
hexca5f21c

212202012 has 24 divisors (see below), whose sum is σ = 540150912. Its totient is φ = 64303600.

The previous prime is 212201989. The next prime is 212202017. The reversal of 212202012 is 210202212.

212202012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212202017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803664 + ... + 803927.

It is an arithmetic number, because the mean of its divisors is an integer number (22506288).

Almost surely, 2212202012 is an apocalyptic number.

212202012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212202012 is an abundant number, since it is smaller than the sum of its proper divisors (327948900).

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

212202012 is a wasteful number, since it uses less digits than its factorization.

212202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607609 (or 1607607 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 212202012 is about 14567.1552473364. The cubic root of 212202012 is about 596.4625292670.

Adding to 212202012 its reverse (210202212), we get a palindrome (422404224).

It can be divided in two parts, 21220 and 2012, that added together give a palindrome (23232).

The spelling of 212202012 in words is "two hundred twelve million, two hundred two thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 1607591 3215182 4822773 6430364 9645546 17683501 19291092 35367002 53050503 70734004 106101006 212202012