1021011012010 has 128 divisors (see below), whose sum is σ = 2096459366400. Its totient is φ = 354742848000.

The previous prime is 1021011011927. The next prime is 1021011012031. The reversal of 1021011012010 is 102101101201.

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, 72103311 + ... + 72117469.

It is an arithmetic number, because the mean of its divisors is an integer number (16378588800).

Almost surely, 2^{1021011012010} is an apocalyptic number.

1021011012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021011012010 is an abundant number, since it is smaller than the sum of its proper divisors (1075448354390).

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

1021011012010 is a wasteful number, since it uses less digits than its factorization.

1021011012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14548.

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

1021011012010 divided by its sum of digits (10) gives a palindrome (102101101201).

Adding to 1021011012010 its reverse (102101101201), we get a palindrome (1123112113211).

It can be divided in two parts, 102101 and 1012010, that added together give a palindrome (1114111).

The spelling of 1021011012010 in words is "one trillion, twenty-one billion, eleven million, twelve thousand, ten".