1020402223401 has 32 divisors (see below), whose sum is σ = 1588818700800. Its totient is φ = 575946737280.

The previous prime is 1020402223331. The next prime is 1020402223433. The reversal of 1020402223401 is 1043222040201.

1020402223401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1020402223401 - 2¹⁴ = 1020402207017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020402223441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13754836 + ... + 13828821.

It is an arithmetic number, because the mean of its divisors is an integer number (49650584400).

Almost surely, 2^{1020402223401} is an apocalyptic number.

1020402223401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1020402223401 is a deficient number, since it is larger than the sum of its proper divisors (568416477399).

1020402223401 is a wasteful number, since it uses less digits than its factorization.

1020402223401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27583749.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1020402223401 its reverse (1043222040201), we get a palindrome (2063624263602).

The spelling of 1020402223401 in words is "one trillion, twenty billion, four hundred two million, two hundred twenty-three thousand, four hundred one".