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1020221100030 = 2351119211375787
BaseRepresentation
bin11101101100010011110…
…10101000111111111110
310121112100221222201221210
432312021322220333332
5113203403100200110
62100403314505250
7133465013160306
oct16661172507776
93545327881853
101020221100030
11363745239710
12145885b95226
137528b7077a2
1437543c44606
151b811b08520
hexed89ea8ffe

1020221100030 has 192 divisors, whose sum is σ = 2844094457088. Its totient is φ = 232232555520.

The previous prime is 1020221100023. The next prime is 1020221100043. The reversal of 1020221100030 is 300011220201.

It is a junction number, because it is equal to n+sod(n) for n = 1020221099979 and 1020221100015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13423797 + ... + 13499583.

It is an arithmetic number, because the mean of its divisors is an integer number (14812991964).

Almost surely, 21020221100030 is an apocalyptic number.

1020221100030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020221100030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1422047228544).

1020221100030 is an abundant number, since it is smaller than the sum of its proper divisors (1823873357058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020221100030 is a wasteful number, since it uses less digits than its factorization.

1020221100030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75959 (or 75940 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1020221100030 its reverse (300011220201), we get a palindrome (1320232320231).

The spelling of 1020221100030 in words is "one trillion, twenty billion, two hundred twenty-one million, one hundred thousand, thirty".