1011222012020 has 48 divisors (see below), whose sum is σ = 2328377280768. Its totient is φ = 365850495360.

The previous prime is 1011222011999. The next prime is 1011222012023. The reversal of 1011222012020 is 202102221101.

1011222012020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1011222011986 and 1011222012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011222012023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11622812 + ... + 11709491.

It is an arithmetic number, because the mean of its divisors is an integer number (48507860016).

Almost surely, 2^{1011222012020} is an apocalyptic number.

1011222012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011222012020 is an abundant number, since it is smaller than the sum of its proper divisors (1317155268748).

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

1011222012020 is a wasteful number, since it uses less digits than its factorization.

1011222012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23332520 (or 23332518 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1011222012020 its reverse (202102221101), we get a palindrome (1213324233121).

The spelling of 1011222012020 in words is "one trillion, eleven billion, two hundred twenty-two million, twelve thousand, twenty".