1011020001210 has 80 divisors (see below), whose sum is σ = 2751273889056. Its totient is φ = 266357058912.

The previous prime is 1011020001163. The next prime is 1011020001221. The reversal of 1011020001210 is 121000201101.

It is a happy number.

It is a super-2 number, since 2×1011020001210² (a number of 25 digits) contains 22 as substring.

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 = 1011020001192 and 1011020001201.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7451884 + ... + 7586343.

Almost surely, 2^{1011020001210} is an apocalyptic number.

1011020001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011020001210 is an abundant number, since it is smaller than the sum of its proper divisors (1740253887846).

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

1011020001210 is a wasteful number, since it uses less digits than its factorization.

1011020001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15038329 (or 15038320 counting only the distinct ones).

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

Adding to 1011020001210 its reverse (121000201101), we get a palindrome (1132020202311).

The spelling of 1011020001210 in words is "one trillion, eleven billion, twenty million, one thousand, two hundred ten".