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1220201210102 = 27791103256067
BaseRepresentation
bin10001110000011001101…
…010001110000011110110
311022122112220211220121012
4101300121222032003312
5124442433002210402
62332315214352222
7154104503104220
oct21603152160366
94278486756535
101220201210102
11430536855256
12178596abb672
138b0ab881674
14430b5429410
1521b1844e452
hex11c19a8e0f6

1220201210102 has 16 divisors (see below), whose sum is σ = 2118251650560. Its totient is φ = 516323838888.

The previous prime is 1220201210093. The next prime is 1220201210131. The reversal of 1220201210102 is 2010121020221.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551626928 + ... + 551629139.

It is an arithmetic number, because the mean of its divisors is an integer number (132390728160).

Almost surely, 21220201210102 is an apocalyptic number.

1220201210102 is a deficient number, since it is larger than the sum of its proper divisors (898050440458).

1220201210102 is a wasteful number, since it uses less digits than its factorization.

1220201210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103256155.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220201210102 its reverse (2010121020221), we get a palindrome (3230322230323).

The spelling of 1220201210102 in words is "one trillion, two hundred twenty billion, two hundred one million, two hundred ten thousand, one hundred two".

Divisors: 1 2 7 14 79 158 553 1106 1103256067 2206512134 7722792469 15445584938 87157229293 174314458586 610100605051 1220201210102