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20212020202 = 21110934924151
BaseRepresentation
bin10010110100101110…
…101111001111101010
31221011121111000021211
4102310232233033222
5312343234121302
613141341423334
71313605223413
oct226456571752
957147430254
1020212020202
118632181a30
123b00b6ab4a
131ba15b018a
14d9a51680a
157d469bad7
hex4b4baf3ea

20212020202 has 32 divisors (see below), whose sum is σ = 33474672000. Its totient is φ = 9076536000.

The previous prime is 20212020133. The next prime is 20212020217. The reversal of 20212020202 is 20202021202.

It is a super-2 number, since 2×202120202022 (a number of 21 digits) contains 22 as substring.

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, 824827 + ... + 848977.

It is an arithmetic number, because the mean of its divisors is an integer number (1046083500).

Almost surely, 220212020202 is an apocalyptic number.

20212020202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20212020202 is a deficient number, since it is larger than the sum of its proper divisors (13262651798).

20212020202 is a wasteful number, since it uses less digits than its factorization.

20212020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24622.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20212020202 its reverse (20202021202), we get a palindrome (40414041404).

The spelling of 20212020202 in words is "twenty billion, two hundred twelve million, twenty thousand, two hundred two".

Divisors: 1 2 11 22 109 218 349 698 1199 2398 3839 7678 24151 38041 48302 76082 265661 418451 531322 836902 2632459 5264918 8428699 16857398 28957049 57914098 92715689 185431378 918728191 1837456382 10106010101 20212020202