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20010222212152 = 2329214321207679
BaseRepresentation
bin1001000110010111111100…
…01011111101010000111000
32121211221212210100200112211
410203023332023331100320
510110321413341242102
6110320322535344504
74133455650262444
oct443137613752070
977757783320484
1020010222212152
116415318856357
1222b2146b22134
13b21c57034793
144d26ddb05824
1524a7a24d97d7
hex1232fe2fd438

20010222212152 has 48 divisors (see below), whose sum is σ = 38860444022400. Its totient is φ = 9659386222080.

The previous prime is 20010222212111. The next prime is 20010222212153. The reversal of 20010222212152 is 25121222201002.

It is a super-2 number, since 2×200102222121522 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010222212153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96247849 + ... + 96455527.

It is an arithmetic number, because the mean of its divisors is an integer number (809592583800).

Almost surely, 220010222212152 is an apocalyptic number.

It is an amenable number.

20010222212152 is a deficient number, since it is larger than the sum of its proper divisors (18850221810248).

20010222212152 is a wasteful number, since it uses less digits than its factorization.

20010222212152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222064 (or 222031 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 20010222212152 its reverse (25121222201002), we get a palindrome (45131444413154).

The spelling of 20010222212152 in words is "twenty trillion, ten billion, two hundred twenty-two million, two hundred twelve thousand, one hundred fifty-two".

Divisors: 1 2 4 8 29 58 116 232 841 1682 3364 6728 14321 28642 57284 114568 207679 415309 415358 830618 830716 1661236 1661432 3322472 6022691 12043961 12045382 24087922 24090764 48175844 48181528 96351688 174658039 349316078 698632156 1397264312 2974170959 5948341918 11896683836 23793367672 86250957811 172501915622 345003831244 690007662488 2501277776519 5002555553038 10005111106076 20010222212152