120001100021010 has 192 divisors, whose sum is σ = 355906067287680. Its totient is φ = 27790368122880.

The previous prime is 120001100021009. The next prime is 120001100021059. The reversal of 120001100021010 is 10120001100021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 120001100020983 and 120001100021001.

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, 50126625 + ... + 52465995.

It is an arithmetic number, because the mean of its divisors is an integer number (1853677433790).

Almost surely, 2^{120001100021010} is an apocalyptic number.

120001100021010 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 120001100021010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177953033643840).

120001100021010 is an abundant number, since it is smaller than the sum of its proper divisors (235904967266670).

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

120001100021010 is a wasteful number, since it uses less digits than its factorization.

120001100021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341993 (or 2341990 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 120001100021010 its reverse (10120001100021), we get a palindrome (130121101121031).

The spelling of 120001100021010 in words is "one hundred twenty trillion, one billion, one hundred million, twenty-one thousand, ten".