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BaseRepresentation
bin11101101100010011101…
…11010010101010011111
310121112100220100010200021
432312021313102222133
5113203402334101421
62100403244013011
7133465002542626
oct16661167225237
93545326303607
101020220222111
1136374479a062
12145885831167
137528b48accc
1437543a966bd
151b8119d3341
hexed89dd2a9f

1020220222111 has 16 divisors (see below), whose sum is σ = 1080035748000. Its totient is φ = 962050940928.

The previous prime is 1020220222079. The next prime is 1020220222121. The reversal of 1020220222111 is 1112220220201.

It is a happy number.

It is not a de Polignac number, because 1020220222111 - 25 = 1020220222079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020220222121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18848815 + ... + 18902863.

It is an arithmetic number, because the mean of its divisors is an integer number (67502234250).

Almost surely, 21020220222111 is an apocalyptic number.

1020220222111 is a deficient number, since it is larger than the sum of its proper divisors (59815525889).

1020220222111 is a wasteful number, since it uses less digits than its factorization.

1020220222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69258.

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

Adding to 1020220222111 its reverse (1112220220201), we get a palindrome (2132440442312).

The spelling of 1020220222111 in words is "one trillion, twenty billion, two hundred twenty million, two hundred twenty-two thousand, one hundred eleven".