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20000121221122 = 2722718733360013
BaseRepresentation
bin1001000110000101001000…
…00111101111000000000010
32121210222210211120011202221
410203002210013233000002
510110140222013033442
6110311532344201254
74132650435260140
oct443024407570002
977728724504687
1020000121221122
116411005033289
1222b01a816922a
13b21007447703
144d20223b4590
1524a3b082d467
hex1230a41ef002

20000121221122 has 32 divisors (see below), whose sum is σ = 34455357643392. Its totient is φ = 8529161981184.

The previous prime is 20000121221071. The next prime is 20000121221191. The reversal of 20000121221122 is 22112212100002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20000121221096 and 20000121221105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4272388 + ... + 7632400.

It is an arithmetic number, because the mean of its divisors is an integer number (1076729926356).

Almost surely, 220000121221122 is an apocalyptic number.

20000121221122 is a deficient number, since it is larger than the sum of its proper divisors (14455236422270).

20000121221122 is a wasteful number, since it uses less digits than its factorization.

20000121221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3362122.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20000121221122 its reverse (22112212100002), we get a palindrome (42112333321124).

The spelling of 20000121221122 in words is "twenty trillion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".

Divisors: 1 2 7 14 227 454 1589 1873 3178 3746 13111 26222 425171 850342 2976197 3360013 5952394 6720026 23520091 47040182 762722951 1525445902 5339060657 6293304349 10678121314 12586608698 44053130443 88106260886 1428580087223 2857160174446 10000060610561 20000121221122