1011020101210 has 128 divisors (see below), whose sum is σ = 2141339328000. Its totient is φ = 343532367360.

The previous prime is 1011020101207. The next prime is 1011020101229. The reversal of 1011020101210 is 121010201101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 192169980 + ... + 192175240.

It is an arithmetic number, because the mean of its divisors is an integer number (16729213500).

Almost surely, 2^{1011020101210} is an apocalyptic number.

1011020101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011020101210 is an abundant number, since it is smaller than the sum of its proper divisors (1130319226790).

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

1011020101210 is a wasteful number, since it uses less digits than its factorization.

1011020101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5781 (or 5767 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1011020101210 its reverse (121010201101), we get a palindrome (1132030302311).

The spelling of 1011020101210 in words is "one trillion, eleven billion, twenty million, one hundred one thousand, two hundred ten".