1101021012021 has 16 divisors (see below), whose sum is σ = 1677760963200. Its totient is φ = 629149366848.

The previous prime is 1101021012001. The next prime is 1101021012037. The reversal of 1101021012021 is 1202101201011.

It is not a de Polignac number, because 1101021012021 - 2⁶ = 1101021011957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101021011988 and 1101021012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101021012001) 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, 4570375 + ... + 4805243.

It is an arithmetic number, because the mean of its divisors is an integer number (104860060200).

Almost surely, 2^{1101021012021} is an apocalyptic number.

It is an amenable number.

1101021012021 is a deficient number, since it is larger than the sum of its proper divisors (576739951179).

1101021012021 is a wasteful number, since it uses less digits than its factorization.

1101021012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458108.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1101021012021 its reverse (1202101201011), we get a palindrome (2303122213032).

The spelling of 1101021012021 in words is "one trillion, one hundred one billion, twenty-one million, twelve thousand, twenty-one".