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1020020212222 = 2111012551179951
BaseRepresentation
bin11101101011111011111…
…00010100000111111110
310121111211221222120200121
432311331330110013332
5113203000133242342
62100331341045154
7133460023514464
oct16657574240776
93544757876617
101020020212222
113636518aa730
1214582a8567ba
1375258bcc36b
14375252b0834
151b7ee176067
hexed7df141fe

1020020212222 has 32 divisors (see below), whose sum is σ = 1686320114688. Its totient is φ = 458872500000.

The previous prime is 1020020212151. The next prime is 1020020212231. The reversal of 1020020212222 is 2222120200201.

It is a junction number, because it is equal to n+sod(n) for n = 1020020212196 and 1020020212205.

It is a congruent number.

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, 5578347 + ... + 5758297.

It is an arithmetic number, because the mean of its divisors is an integer number (52697503584).

Almost surely, 21020020212222 is an apocalyptic number.

1020020212222 is a deficient number, since it is larger than the sum of its proper divisors (666299902466).

1020020212222 is a wasteful number, since it uses less digits than its factorization.

1020020212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182616.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1020020212222 its reverse (2222120200201), we get a palindrome (3242140412423).

The spelling of 1020020212222 in words is "one trillion, twenty billion, twenty million, two hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 11 22 101 202 1111 2222 2551 5102 28061 56122 179951 257651 359902 515302 1979461 2834161 3958922 5668322 18175051 36350102 199925561 399851122 459055001 918110002 5049605011 10099210022 46364555101 92729110202 510010106111 1020020212222