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22212131010 = 235740404367
BaseRepresentation
bin10100101011111100…
…100011100011000010
32010100000001011111220
4110223330203203002
5330442301143020
614112031015510
71414302666306
oct245374434302
963300034456
1022212131010
119469194873
12437a96a596
13212ca95ab4
141109dddd06
158a0082240
hex52bf238c2

22212131010 has 16 divisors (see below), whose sum is σ = 53309114496. Its totient is φ = 5923234928.

The previous prime is 22212131009. The next prime is 22212131017. The reversal of 22212131010 is 1013121222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (22212131017) 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 7 ways as a sum of consecutive naturals, for example, 370202154 + ... + 370202213.

It is an arithmetic number, because the mean of its divisors is an integer number (3331819656).

Almost surely, 222212131010 is an apocalyptic number.

22212131010 is an abundant number, since it is smaller than the sum of its proper divisors (31096983486).

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

22212131010 is a wasteful number, since it uses less digits than its factorization.

22212131010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740404377.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22212131010 its reverse (1013121222), we get a palindrome (23225252232).

The spelling of 22212131010 in words is "twenty-two billion, two hundred twelve million, one hundred thirty-one thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 740404367 1480808734 2221213101 3702021835 4442426202 7404043670 11106065505 22212131010