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221212020002102 = 2110606010001051
BaseRepresentation
bin110010010011000011101111…
…110111110100110100110110
31002000020122220000120001021122
4302103003233313310310312
5212443314204110031402
62102251222110343542
764411020034354403
oct6223035767646466
91060218800501248
10221212020002102
116453754433aa08
1220988455ababb2
1396582861a649c
143c8aa0c9132aa
151a89373ed2ca2
hexc930efdf4d36

221212020002102 has 4 divisors (see below), whose sum is σ = 331818030003156. Its totient is φ = 110606010001050.

The previous prime is 221212020002027. The next prime is 221212020002143. The reversal of 221212020002102 is 201200020212122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55303005000524 + ... + 55303005000527.

It is an arithmetic number, because the mean of its divisors is an integer number (82954507500789).

Almost surely, 2221212020002102 is an apocalyptic number.

221212020002102 is a deficient number, since it is larger than the sum of its proper divisors (110606010001054).

221212020002102 is a wasteful number, since it uses less digits than its factorization.

221212020002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110606010001053.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221212020002102 its reverse (201200020212122), we get a palindrome (422412040214224).

The spelling of 221212020002102 in words is "two hundred twenty-one trillion, two hundred twelve billion, twenty million, two thousand, one hundred two".

Divisors: 1 2 110606010001051 221212020002102